[Android] Enable Partial O2 unconditionally on Release builds

build/android/increase_size_for_speed.gypi

 # Copyright (c) 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # This file is meant to be included to optimize a target for speed
 # rather than for size on Android.
 # This is used in some carefully tailored targets and is not meant
 # to be included everywhere. Before adding the template to another target,
 # please ask in chromium-dev@. See crbug.com/411909
 
 {
   'configurations': {
     'Release': {
       'target_conditions': [
         ['_toolset=="target"', {
           'conditions': [
-            ['OS=="android" and fastbuild==0', {
+            ['OS=="android"', {
               'cflags!': ['-Os'],
               'cflags': ['-O2'],
             }],
           ],
         }],
       ],
     },
   },
 }